Quantum/Machines/QSolid 10-Qubit Prototype
Germany · operational · Superconducting circuits
QSolid 10-Qubit Prototype
QSolid 10-Qubit Prototype is a superconducting circuits quantum computer operated by Forschungszentrum Julich in Germany. It has 10 physical qubits. It ranks 60 of 74 superconducting machines in this table by physical qubit count. 5 sourced specs are in the spec sheet. 1 published benchmark or milestone record are listed below, each marked by who measured it.
Also known as QSolid prototype at JUNIQ
Demonstrator of the German QSolid consortium (BMBF funding of 76.3 million euros, project running January 2022 to December 2026), integrated by the Julich Supercomputing Centre into JUNIQ. Its first external test phase began on 17 November 2025 via the JuDoor platform, with ParTec, ParityQC and HQS Quantum Simulations as first outside users; Qruise and Eviden supplied firmware and HPC components. The consortium targets up to 30 qubits with maximum error correction by project end, and a second prototype was announced for January 2026. JSC's JUNIQ systems page, read in October 2026, still lists QSolid under systems in development with a 10-qubit initial goal, so treat operational status as that of a prototype. Fraunhofer IPMS, GlobalFoundries and IZM-ASSID work on cryogenic CMOS co-integration for later generations. No fidelity or coherence figures were found.
Spec sheet
Technical details as the builder or a paper states them, each with its own source. A blank is a fact we could not source, not a zero. Fidelity and coherence figures are in the benchmark table below.
| Spec | Value | Basis | Note | Source |
|---|---|---|---|---|
| Processor | 10-qubit prototype with hardware developed at Forschungszentrum Julich from the chip upwards | Vendor reported | Press-release wording reproduced by both outlets, November 2025. | thequantuminsider.comquantumcomputingreport.com |
| Qubit type | superconducting quantum chips | Vendor reported | Both project pages describe next-generation superconducting circuits; the exact qubit design is not stated. | ipms.fraunhofer.deblogs.helmholtz.de |
| Software | Qruise quantum firmware and Eviden HPC components, integrated by Julich into JUNIQ | Vendor reported | Integrated software stack with cloud user access is part of the 10-qubit demonstrator goal. | thequantuminsider.comquantumcomputingreport.com |
| Access and pricing | Cloud access via JuDoor; first external test phase from 17 November 2025 | Vendor reported | First outside users were ParTec, ParityQC and HQS Quantum Simulations; no regular access route was found on the JUNIQ page. | thequantuminsider.comquantumcomputingreport.com |
| Roadmap | Up to 30 qubits with maximum error correction by project end in December 2026 | Vendor reported | Consortium target from the 2024 project pages; JUNIQ page also lists the 30-qubit goal. | blogs.helmholtz.deipms.fraunhofer.de |
Milestone claims
- First two-week external test phase opened to users outside Julich via JuDoor (2025-11-17, vendor reported) thequantuminsider.comquantumcomputingreport.com
Timeline
- 2022-01: Announced
- 2025-11: First operational
- 2025-11-18: Status checked: operational
More from Forschungszentrum Julich
- JION (operational)
- JUPSI (upgraded, 4,400 qubits)
- Pasqal JADE (operational, 100 qubits)
- JUPSI-2 (operational, 4,400 qubits)
- JIQCER-5 (operational, 5 qubits)
- JAQUI-5 (operational, 5 qubits)
Comparable superconducting machines
Closest in physical qubit count within the same technology. Counts of different qubit types are not interchangeable across technologies.
| Machine | Operator | Qubits | Status |
|---|---|---|---|
| Rigetti Novera at Montana State University | Montana State University | 9 | operational |
| AWS Ocelot | Amazon | 9 | operational |
| Rigetti Novera at PSC (TangleLab) | PSC | 9 | planned |
| Rigetti Novera at University of Saskatchewan | University of Saskatchewan | 9 | operational |
| Horizon Quantum Testbed | Horizon Quantum Computing | 9 | operational |
| Quantum Inspire Tuna-9 | QuTech | 9 | operational |